12199942 has 8 divisors (see below), whose sum is σ = 18505800. Its totient is φ = 6031344.

The previous prime is 12199937. The next prime is 12199949. The reversal of 12199942 is 24999121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12199949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34092 + ... + 34447.

It is an arithmetic number, because the mean of its divisors is an integer number (2313225).

Almost surely, 2^12199942 is an apocalyptic number.

12199942 is a deficient number, since it is larger than the sum of its proper divisors (6305858).

12199942 is an equidigital number, since it uses as much as digits as its factorization.

12199942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68630.

The product of its digits is 11664, while the sum is 37.

The square root of 12199942 is about 3492.8415366289. The cubic root of 12199942 is about 230.2073869856.

The spelling of 12199942 in words is "twelve million, one hundred ninety-nine thousand, nine hundred forty-two".